#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include<string>
using namespace std;

#include"string.h"

int main()
{
	string s("hello");
	const char* bit="Linux";
	s.insert(0, bit);
	cout << s.c_str()<<endl;
	s.erase(3,3);
	cout << s.c_str()<<endl;

	cout << s;
	return 0;
}